Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc0eec01c47abd15…

MALICIOUS

PDF

72.6 KB Created: 2020-12-25 06:44:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 835ac5da84b898ef532bd324aeec71b1 SHA-1: 870482a5efb34794da050edf1e2bde1ddb3991f1 SHA-256: fc0eec01c47abd15665fe72fe46e5e5f3d4c2ab08a8756f8a044732238aff9d9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, contains keywords related to 'dirt trackin sprint cars mod', suggesting a lure to attract users interested in racing games.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffnew.ru/strik?utm_term=dirt+trackin+sprint+cars+mod PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4391308/normal_5f94fd7ad9546.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/7OieAVe/lopemomobitexeramekaretab.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/hbheJ8N/31808646395.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/jggjjfO/13984178817.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490515/normal_5fe3f9d65f2d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389805/normal_5f9fc0d82c6e7.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/jdTuhiw/1st_birthday_cake_design_for_girl_baby.pdfIn PDF document text
    • https://cdn.sqhk.co/pekebugus/Eibjgie/31700880077.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5fbd479200da6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374374/normal_5fd179e969f0d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wujafivabipo/world_airport_codes_list.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/12114801304.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/informacion_carreteras_cortadas_alicante.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/funky_town_pseudo_echo_sheet_music.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d23c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD23C 5252 bytes
SHA-256: 20e782f0cfc1149d2cbf04013161e1cdb63407d2793b39b0642f0a70624b0fc8
font_01_sfnt_off0000e403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE403 2116 bytes
SHA-256: e898885ac8c4a4241efe289c0db20a06fd562adc3ac6fc0406b29ab4f5a61d56
font_02_sfnt_off0000edd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD6 11272 bytes
SHA-256: 7241d48c18d0b213b681891096e30b82ba0ce900d8e2d9bda8e891bd70659719

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